#需求：解析下载图片数据    https://pic.netbian.com/4kmeinv/

import requests
from lxml import etree
import os

if __name__ == "__main__":
    url = 'https://pic.netbian.com/4kdongman/'
    headers={
        'User-Agent' : 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36'
    }
    response = requests.get(url=url,headers=headers)
    #手动设置响应数据的编码格式
    #response.encoding='utf-8'
    page_text = response.text
    #数据解析：src的属性值，alt的属性值
    tree = etree.HTML(page_text)
    li_list = tree.xpath('//div[@class="slist"]/ul/li')
    #创建一个文件夹
    if not os.path.exists('./picLibs'):
        os.mkdir('./picLibs')#如果文件夹不存在就创建一个
    for li in li_list:
        img_src = 'https://pic.netbian.com'+li.xpath('./a/img/@src')[0]
        img_name = li.xpath('./a/img/@alt')[0]+'.jpg'
        #通用处理中文乱码的解决方案
        img_name = img_name.encode('iso-8859-1').decode('gbk')
        #print(img_name,img_src)
        #持久化存储
        img_data = requests.get(url=img_src,headers=headers).content#图片二进制数据
        img_path = 'picLibs/'+img_name#图片路径
        with open(img_path,'wb') as fp:
            fp.write(img_data)
            print(img_name,'下载成功！！！')

